XGY   Grimsby Mountain, ON Weather Observed At   43-11  N    79-34  W

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2026-10-16	5:15pm			Max		Min
Weather
Temperature		11.2 °C		19.6 °C	5:35am	11.1 °C	12:01am
Relative Humidity		77 %		94 %	3:32am	76 %	5:12pm
Dew Point		7.3 °C		18.3 °C	5:16am	7.2 °C	5:03pm
Wind Velocity		281 ° at  1.3 G 8.7 kt		16.5 kt	9:36am
Pressure		29.855 "		29.855 "	5:01pm	29.574 "	8:09am
Rainfall Rate		0.0 mm/h		123.8 mm/h	7:31am
Snow On Ground		0 cm
Brightness / Darkness		23 W/m² /  0.00 m/"²		141 W/m²	10:51am	19.29 m/"²	4:39am
Remarks

Rainfall	Today	10.0 mm	Storm Total	10.0 mm
Snowfall	Today	0.0 cm	Storm Total	0.0 cm

Evapotranspiration

Today

-0.28 mm

Lake Conditions

Water Temperature  15.5 °C

Waves  2½ '

ICE FREE

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Meteor Index	26   Orionids
Aurora Index / Solar	45   Active   + 5 nT	Solar Flux   131  sfu  /   S 0    G 0    R 1   /  MUF   28.6 MHz

Sunrise	7:33am	Sunset	6:33pm
Moonrise	N/A	Moonset	N/A	Moon Phase	First Quarter

Grimsby Mountain Weather Maps
Local	Regional	Area	Synoptic
updated H+09 and every 10m	updated H+19 and H+49	updated H+19

Ontario 6-Hour Meteorological Summary

Canadian 6-Hour Meteorological Summaries

CLIMAT Data
Official	Yesterday					2004	2005	2006	2007	2008	2009	Normals & Records
		2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
		2020	2021	2022	2023	2024	2025	2026

Grimsby Mountain Charts

	Sky Quality (Darkness) Meter courtesy of

              

Wx Map	Sat Pix	IR Sat Pix	Radar	Lightning
	Water	Ice

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  This is a privately operated weather station that is part of the Meteorological Service of Canada's official observing network.
Permission to publish the weather statistics found on this website is not required.
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